CA2356761A1 - Retrieving cell information in an overlaid circuit switched and packet switched wireless telecommunication network - Google Patents

Retrieving cell information in an overlaid circuit switched and packet switched wireless telecommunication network Download PDF

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Publication number
CA2356761A1
CA2356761A1 CA002356761A CA2356761A CA2356761A1 CA 2356761 A1 CA2356761 A1 CA 2356761A1 CA 002356761 A CA002356761 A CA 002356761A CA 2356761 A CA2356761 A CA 2356761A CA 2356761 A1 CA2356761 A1 CA 2356761A1
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Prior art keywords
network
control channel
khz
carrier bandwidth
packet
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Granted
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CA002356761A
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French (fr)
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CA2356761C (en
Inventor
Sara Mazur
Gunnar Thrysin
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Telefonaktiebolaget LM Ericsson AB
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Individual
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Publication of CA2356761A1 publication Critical patent/CA2356761A1/en
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Publication of CA2356761C publication Critical patent/CA2356761C/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method of obtaining cell specific information for a dual-mode mobile stati on (MS) operating in an overlaid network operating on different frequency bandwidths and time slot structures such as a combined D-AMPS and EDGE described in the ETSI Enhanced Data Rates for GSM Evolution (EDGE) specification. The combined networks operating on 30 kHz and 200 kHz respectively having a combined circuit switched and packet switched capability. An MS camping in packet mode is able to perform cell selection/reselection on a particular network by scanning and reading the appropriate control channels of the associated network. For example, in a first aspect of the invention, the MS periodically scans both the control channels on the 30 kHz network to read related cell information and the control channels of the 200 kHz network to read related cell information associated therewith. In a second aspect of the invention, the MS scans the 30 kHz control channels to read the cell information and, if cell reselection occurs, then scans the 200 kHz control channels. In a third aspect, the MS scans and reads the 200 kHz control channels for cell information and, in response to a page from the 30 kHz network, scans control channels associate d with the 30 kHz network. A fourth aspect includes the situation where both 3 0 kHz and 200 kHz cells are coordinated. The MS can then scan and read the control channels from either network and obtain a pointer to the control channels of the other network.

Claims (22)

1. In a wireless telecommunication system having an overlaid cell arrangement comprising a first circuit switched network using a first carrier bandwidth operating together with a second packet switched network using a second carrier bandwidth, a method of obtaining cell specific information for a mobile station (MS) comprising the steps of:
scanning and tuning to an associated control channel on the first network;
reading cell specific information from said associated control channel on the first network;
scanning and tuning to an associated control channel on the second network; and reading cell specific information from said associated control channel on the second network.
2. A method according to claim 1 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
3. A method according to claim 1 wherein said packet switched data service is General Packet Radio Service (GPRS) specified for use with the Global System for Mobile Communications (GSM).
4. A method according to claim 1 wherein said associated control channel on the first network is a digital control channel (DCCH).
5. A method according to claim 1 wherein said associated control channel on the second network is a broadcast control channel (BCCH).
6. A method according to claim 1 wherein said scanning is performed by taking cell reselection measurements on neighboring control channels.
7. A method according to claim 1 wherein page message from the first network is forwarded to the MS through the packet switched data service network.
8. In a wireless telecommunication system having an overlaid cell arrangement comprising a first network using a first carrier bandwidth operating together with a second network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched service and packet switched data service, a method of responding to a page by a mobile station (MS) camped in packet mode comprising the steps of:
scanning and tuning to a digital control channel (DCCH) on said first network;
reading cell specific information from said DCCH;
scanning and tuning to a broadcast control channel (BCCH) on the second network;
reading BCCH to obtain a pointer to an associated packet control channel on the second network such that said packet control channel is accessed in response to packet switched data service page; and responding to an incoming page.
9. A method according to claim 8 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
10. A method according to claim 8 wherein said packet switched data service is General Packet Radio Service (GPRS) specified for use with the Global System for Mobile Communications (GSM).
11. A method according to claim 8 wherein said associated packet control channel is a packet common control channel (PCCCH).
12. A method according to claim 8 wherein page message from the first network are forwarded to the MS through the packet switched data service.
13. In a wireless telecommunication system having an overlaid cell arrangement comprising a first D-AMPS network using a first carrier bandwidth operating together with a second EDGE/GPRS network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched and packet switched data service, a method of obtaining cell specific information by a mobile station (MS) camped in packet mode comprising the steps of:
scanning and tuning to an associated control channel on the second network;
reading cell specific information from said associated control channel on the second network;
scanning and tuning to an associated control channel on the first network in response to a page from the first network; and reading cell specific information from said associated control channel on the first network.
14. A method according to claim 13 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
15. A method according to claim 13 wherein said packet switched data service is General Packet Radio Service (GPRS) specified for use with the Global System for Mobile Communications (GSM).
16. A method according to claim 13 wherein said associated control channel on the second network is a broadcast control channel (BCCH).
17. A method according to claim 13 wherein said associated control channel on the first network is a digital control channel (DCCH).
18. In a wireless telecommunication system having a coordinated overlaid cell arrangement comprising a first network using a first carrier bandwidth operating together with a second network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched and packet switched data service, a method of obtaining cell specific information by a mobile station (MS) camped in packet mode comprising the steps of:
scanning and tuning to an associated control channel on either the first network or second network;
reading cell specific information and a pointer to the other network from said associated control channel; and switching to the other network as directed by the pointer, in response to an incoming page from the other network.
19. A method according to claim 18 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
20. A method according to claim 18 wherein said packet switched data service is General Packet Radio Service (GPRS) specified for use with the Global System for Mobile Communications (GSM).
21. A method according to claim 18 wherein said associated control channel on the first network is a digital control channel (DCCH).
22. A method according to claim 18 wherein said control channel on the second network is a broadcast control channel (BCCH).
CA2356761A 1998-12-31 1999-12-10 Retrieving cell information in an overlaid circuit switched and packet switched wireless telecommunication network Expired - Lifetime CA2356761C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/223,636 US6463054B1 (en) 1998-12-31 1998-12-31 Retrieving cell information in an overlaid circuit switched and packet switched wireless telecommunication network
US09/223,636 1998-12-31
PCT/SE1999/002322 WO2000041425A1 (en) 1998-12-31 1999-12-10 Retrieving cell information in an overlaid circuit switched and packet switched wireless telecommunication network

Publications (2)

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CA2356761A1 true CA2356761A1 (en) 2000-07-13
CA2356761C CA2356761C (en) 2011-02-01

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CA2356761A Expired - Lifetime CA2356761C (en) 1998-12-31 1999-12-10 Retrieving cell information in an overlaid circuit switched and packet switched wireless telecommunication network

Country Status (10)

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US (1) US6463054B1 (en)
EP (1) EP1142417B1 (en)
CN (1) CN1126420C (en)
AR (1) AR022181A1 (en)
AT (1) ATE498290T1 (en)
AU (1) AU2132900A (en)
BR (1) BR9916710A (en)
CA (1) CA2356761C (en)
DE (1) DE69943186D1 (en)
WO (1) WO2000041425A1 (en)

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Also Published As

Publication number Publication date
AR022181A1 (en) 2002-09-04
CN1126420C (en) 2003-10-29
CN1338191A (en) 2002-02-27
US6463054B1 (en) 2002-10-08
EP1142417B1 (en) 2011-02-09
WO2000041425A1 (en) 2000-07-13
ATE498290T1 (en) 2011-02-15
CA2356761C (en) 2011-02-01
AU2132900A (en) 2000-07-24
BR9916710A (en) 2001-09-25
DE69943186D1 (en) 2011-03-24
EP1142417A1 (en) 2001-10-10

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